%0 Journal Article %A L. Polkowski %T A sum theorem for A-weakly infinite-dimensional spaces %J Fundamenta Mathematicae %D 1983 %P 7-10 %V 119 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-119-1-7-10/ %R 10.4064/fm-119-1-7-10 %G en %F 10_4064_fm_119_1_7_10